The Cosmotop Spin Quill is a "revolutionary" brush from Da Vinci that features a "dancing tip"!
Cosmotop Spin brushes hold more water than any other synthetic. These brushes mimic the performance of natural hair with an energetic spring, offering the watercolorist extremely long length out of the brush.
Note — Brush sizes are not standardized. The length and width of a brush of a given shape and size varies considerably by manufacturer. Since fine art brushes are hand crafted, expect some variation even among brushes from a given manufacturer.
® Da Vinci is a registered trademark of Da Vinci Brushes.